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Table 5 Distribution of beta-lactamase positive ampicillin-resistant Haemophilus parainfluenzae isolates in patients with sarcoidosis

From: Changes in the prevalence and biofilm formation of Haemophilus influenzae and Haemophilus parainfluenzae from the respiratory microbiota of patients with sarcoidosis

Biotype

Nasopharynx

Sputum

Resistance profile (No. of isolates)

MICAm (μg/ml)

Resistance profile (No. of isolates)

MICAm (μg/ml)

I

Am (1)

24

AmTe (1)

4

AmSxt (1)

>256

AmTe (1)

48

AmCtxCazSxt (1)

8

  

AmTeSxt (1)

128

  

III

AmCtxCazTeSxt (1)

6

  

AmTeSxt (1)

6

  
  1. Abbreviations: Am ampicillin, Caz ceftazidime, Ctx cefotaxime, Te tetracycline, Sxt trimethoprim/sulfametoxazole
  2. Ampicillin breakpoints used for interpretation of minimal inhibitory concentration (MICAm): susceptible ≤1 μg/ml, intermediate = 2 μg/ml and resistant ≥ 4 μg/ml, according to [25]